Merriam-Webster lists it as:

Main Entry: ob·fus·cate
Pronunciation: 'äb-f&-"skAt; äb-'f&s-"kAt, &b-
Function: transitive verb
Inflected Form(s): -cat·ed; -cat·ing
Etymology: Late Latin obfuscatus, past participle of obfuscare, from Latin
ob- in the way + fuscus dark brown -- more at OB-, DUSK
Date: 1577
1 a : DARKEN b : to make obscure
2 : CONFUSE
- ob·fus·ca·tion /"äb-(")f&s-'kA-sh&n/ noun
- ob·fus·ca·to·ry /äb-'f&s-k&-"tOr-E, &b-, -"tor-/
adjective 

Which basically means it should be hard to understand :)

Greetz
Beatnik
... Quidquid perl dictum sit, altum viditur.